js sum of array
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10js sum of array
[1, 2, 3, 4].reduce((a, b) => a + b, 0)
// Output: 10.reduce mdn
arr.reduce(callback( accumulator, currentValue[, index[, array]] )[, initialValue])Copyright © 2021 Codeinu
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